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What is Wilfley table method?

Important Questions on Metallurgy

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Science>Chemistry>Metallurgy>Metallurgy and its principles

Find the odd man out: 

Tinning, Anodisation, Alloying, Froth floatation. 

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Science>Chemistry>Metallurgy>Metallurgy and its principles
Give the name and chemical formula of one ore of copper. 
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Science>Chemistry>Metallurgy>Metallurgy and its principles
In the Wilfley table method, the particles of gangue are separated by the _____ separation method.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Addition of cryolite in the molten state of subdivision to fused alumina during electrolytic reduction enhances _____ of the electrolytic mixture.
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Science>Chemistry>Metallurgy>Metallurgy and its principles

Complete the blanks using appropriate word given in the box only.

Bronze           Magnesium       Carbon          Bell metal       Brass              
Copper Sodium Silver Zinc Mercury

The amphoteric oxide which can be reduced to metal by carbon reduction is _____

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Science>Chemistry>Metallurgy>Metallurgy and its principles
Decomposition of an oxide ore on heating below its melting point is called _____. (reduction / calcination / roasting)
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Science>Chemistry>Metallurgy>Metallurgy and its principles

_____ is a mineral from which a metal can be extracted profitably.

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Science>Chemistry>Metallurgy>Metallurgy and its principles
In thermite welding, aluminium acts as a _____ agent.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Electromagnets are used to concentrate _____ ores. (magnetic / non-magnetic)
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Science>Chemistry>Metallurgy>Metallurgy and its principles

Haematite ore of iron is _____.

(A) FeOH2                    (B) Fe2O3                 (C) FeO

Enter your correct answer as A, B or C.

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Science>Chemistry>Metallurgy>Metallurgy and its principles
The non-fusible mass floating over the molten metal is called _____. (slag / flux)
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Ag, Au and Pt are found in _____ state.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
_____ are the natural sources of metals which are extracted from the earth. (Gangue / Ores)
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Complete the blank using appropriate word given in the box only.
Bronze              Magnesium       Carbon           Bell metal           Brass
Copper Sodium Silver Zinc Mercury            
A metal carbonate on thermal decomposition gives metal as residue is _____.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
_____ is the most abundant metal in the earth’s crust. (Calcium/ Aluminium)
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Science>Chemistry>Metallurgy>Metallurgy and its principles
In the extraction of aluminium from bauxite _____ is added to lower the melting point of bauxite. (Cryolite/ lead)
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Acidic impurities in an ore are removed by heating ore with _____  flux.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Basic impurity of CaO in an ore is removed by heating ore with _____.  (Manganese oxide/ Silicon dioxide)
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Science>Chemistry>Metallurgy>Metallurgy and its principles
Carbonate ore of Zinc Is called _____.
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Science>Chemistry>Metallurgy>Metallurgy and its principles
_____ is found in a high percentage in limestone. (Name the compound)